Expansion chamber and condenser for engine cooling systems



Nov. 3, 1931. A. R. NOTTINGHAM EXPANSION CHAMBER AND CONDENSER FOR ENGINE COOLING SYSTEMS Filed 001:. 20, 1928 A TTORNEY-i V rarefie N v. 3, 193i U ITED-STA Avon n. NOTTINGHAM,

EXPANSION cn'amnnn AND ooivnnnsnitnon memeeoome sis inns Application filed October 204152 2111 eal ni iate?j I I overboiling condition ceases or continuously when a return tube construction 1s utilized. a The chief feature of the invention consists in connecting the usual overflow outlet"- to an auxiliary vented tank or chamber substantially at or above the level of said outlet and connected therewith, saidchamber having an intake near the bottom. 7 The circulatory system secured by the :above arrangement includes pressure (over-c boil) filling and gravity return ofthe overboil including the condensed vapor, if any. 1 The full nature of the invention will be understood from'the accompanying drawings and the following description and claim:

In the drawings Fig. 1 is a longitudinal I vertical sectional view of the cooling system plurality of interconnected condensingunits combustion engine having -a water cooled of an internal combustion engine equipped motor'vehicle including a forced circulation system-and with the invention applied thereto. -Fig. 2 is a central sectional view of a shown in Fig. 1. q

In thedrawings 10 indicates an internal head and block with an inlet-11 and an outlet 12. A- radiator 13 has the conventional drain 14;, the discharge 15and intake 16. Pump 17 may beincluded between the radiator and engine openings 15 and 11 respectively if desired. The radiatorand engine, openings 16 and 12 are also connectedtogether. The

radiator may be of any conventional type, i. e.

vertical flow, or the cross flow type as indi ,cated herein or that for vapor (steam) cooling.

' gWith the cross'fiow typeythere is ahead of liquid above the opening 16 through which 7 the vapors must passbefore entering the space 18 in the top of the radiator and which i is provided with the usual filling neck 19 or nnrnoir; ivircriicnn 1- closed'byacap eoand an overflow outlet 21 at aii redeterininedleveliv w! '5 T f i 1 standard commercialconstruction.'

- inlet "25' and enters saidtankne'ar thetop as at2Yzff' A pipe'28 may be provided for/the vent 2,4: i f desiredi When engines. operate; under heavy loads and for'long periods the igravi j I tyo-returni:tube 29' rhay be u'tilized with or Wltl10UUValV8' -30iEtSgdESlPQd. 3 i :1. iThe operation is; as, follows The radiator andcooling system isfilled with the "cooling ined unr such as Water or water, including an anti-freeze compound upto a suitable level suclii's' as: the overflow ou'tle't; Ii below that V I V fills the'radi'atorup' level initial overboiling outlet, or the overboil rises above the same, the surplus passes through pipe 26 into tank Any overboiling vapor formed condenses insaid tank and collectsin the bottom thereof. The surplus cooling medium in tank 23 when the system is cool and has a level below the radiator overflow outlet, reverses its flow and by gravity returns to the radiator until the tank is emptied or the level in the radiator and tank are substantially the same.

When a forced circulation system includes the invention the condensing tank receives the surplus pressure pumpage and retains it as long as the pump maintains an excess pressure in the system. This tank receives any temporary surplus from the radiator due to centrifugal force by quick turning of the vehicle or to liquid expansion caused by driving for a long period in low gear, or pulling heavy loads, or by steam pocketing in mounted immediately beneath the c'owl 22 of 

